The Casio Countdown Timer WS1800-1A Digital is a multifunctional sports watch designed for quick readability and everyday reliability. Its wide, retro-style graphic display makes the countdown timer easy to read at a glance, making it ideal for training, events, and active use. Built with a lightweight resin case and bezel measuring 48.2 × 45 × 13.8 mm and weighing just 41g, it’s comfortable on the wrist and paired with a durable resin band to fit wrists from 145–215 mm. The spherical resin glass protects the display, while 100-metre water resistance ensures confidence in wet conditions. Powered by a long-lasting CR2025 battery with an approximate 10-year lifespan, the WS1800-1A features world time across 29 time zones (48 cities), a 1-second stopwatch with elapsed time and event timer modes, and versatile countdown functions with preset timers from 10 to 45 minutes and up to nine interval timers with auto-repeat. An amber LED backlight with afterglow ensures visibility in low light, while daily alarm, hourly time signal, full auto-calendar to 2099, ±30 seconds per month accuracy, and 12/24-hour time format complete this practical, sports-ready digital watch. - Case size: 48.2 × 45 × 13.8 mm - Weight: 41g - Case & bezel: Resin - Band: Resin band (fits 145–215 mm wrists) - Glass: Resin / spherical glass - Water resistance: 100 metres - Battery: Approx. 10-year battery life (CR2025) - World time: 29 time zones (48 cities), daylight saving on/off - Stopwatch: 1-second accuracy, elapsed time and event timer modes - Timers: Preset countdown timers (10–45 minutes), up to 9 interval timers with auto-repeat - Alarm: Daily alarm and hourly time signal - Light: Amber LED backlight with afterglow - Calendar: Full auto-calendar to 2099 - Accuracy: ±30 seconds per month - Other: 12/24-hour format, mute button tones, regular timekeeping (hour, minute, second, date, day)
